Cadillac Allante Forum Discussion, Climate Control on '93 Allante on the fritz in Past Cadillac Vehicle Discussion; I just bought a '93 Allante. The DIC indicates low refrigeration coolant so I am not suprised that the A/C ...

Climate Control on '93 Allante on the fritz

I just bought a '93 Allante. The DIC indicates low refrigeration coolant so I am not suprised that the A/C does not work but the temp settings do not work either - it displays 60 degrees and does not change when I push the red button. The fan does not work either. I suspect it is the module but thought I would ask those who know these things before spending money needlessly. Thanks!

Re: Climate Control on '93 Allante on the fritz

Any solution to this one? My Climate control works sometimes. Usually it works better after I have been driving 10-15 minutes but not always. It was a tough Washington winter/spring with poor window defrosting, good thing the dash is nice and flat as my towel stays perfectly even with the top down As I said fan speeds, temperature and different settings work SOMETIMES! Any thoughts or ideas would be fantastic !

Re: Climate Control on '93 Allante on the fritz

My Climate control works sometimes. Usually it works better after I have been driving 10-15 minutes but not always.This climate on 93 allante on the firtz with top down.It was a tough Washington winter /spring nice of top down.As I said fan speeds temperature.

Re: Climate Control on '93 Allante on the fritz

Another board was discussing this but not on a '93. Do all of those comments about the parking brake, vacuum hoses, etc. apply to a '93 as well.

I had mine detailed for father's day and now my problems sound pretty similar. The engine was also cleaned. When this happened at the carwash they pulled a trunk fuse and replaced it (same fuse) - things started working fine. Later, after stopping, went to hot out of windshield.

Most times hot air out of windshield vents only. Shutting down and starting may get cold air from dash vents for a little while, then back to hot out of windshield. Up, down lever doesn't seem to have effect.

I pulled and replaced the power HVAC 30 amp (same fuse) in the engine compartment.

None of these fuses looked blown and no codes showing in dash.

Working the up/down lever, changing temp, turning AC off and on gives erratic behavior, but mostly just hot air out of windshield vents.

It must have something to do with the detailing and getting the trunk and engine compartments wet, but don't know what.

Re: Climate Control on '93 Allante on the fritz

Thanks for the tip. I guess I just look all around the right front (or center) and hope to see a hose hanging and hope to find the nipple it came off of? Or do I need to go to the Caddy dealer (ugh!) or to an AC shop? I don't have a manual.

Is the system common to Caddy's so my regular mech. shop would know about it?

Thanks again for the help. Vacuum can't be as bad as computers or electrical.

Re: Climate Control on '93 Allante on the fritz

Please fill out your profile. Year and type of car and what area of the world you are in? review mine above as an example Owning an Allante without the factory shop manual will cost you a lot more money having the mechanic "learn" on your car.

Re: Climate Control on '93 Allante on the fritz

Having an engine cleaned is not a BAD idea. Choosing the proper person to do it can be! I would think any technician that's familiar with a First generation Northstar Cadillac should be able to ck vacuum hoses.

Re: Climate Control on '93 Allante on the fritz

OK - I have found a 93 Allante Original Shop Manual Repair Service Book and a93 Allante Factory Service Manual Revision (Loose Leaf). Do I need both? The first one has a black cover. They aren't cheap.

I called my guy - he used to run the shop at a Caddy agency in another town - knew right away either a disconnected (probable since engine was cleaned) or collapsed vacuum hose like you all said. Big relief.

While I have your ear, are there 2 different 93 greens? I read that Polo Green in most desirable. Also, my gear shift needs dying - how do I know the color (looks like light tan to me) and do you have a source for the dye?